The Bolt,shear, cataloged under National Stock Number 5306-01-054-8389, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Acufast Aircraft Products. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-054-8389 |
| Primary Part Number | C7521L6-15 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Acufast Aircraft Products |
| Status | ACTIVE |
| Head Height | 0.210 INCHES NOMINAL IN |
| Fastener Length | 1.498 INCHES MINIMUM AND 1.518 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.570 INCHES NOMINAL IN |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.679 INCHES NOMINAL IN |
| Grip Diameter | 0.3733 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| C7521L6-15 | Acufast Aircraft Products (USA) |
| C7521L6-15 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| PBF7521L6-15 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| C7521L6-15 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 120978L6-15 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| H411L6-15 | Huck International, Inc (USA) |
| VS3133L6-15 | Howmet Global Fastening Systems Inc (USA) |
| AIC596L6-15 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| 5306PL1803010 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5306PL1497061 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| VS3133L6-15 | 5/9 Secondary reference U.S. Government activity |
| C7521L6-15 | 3/2 Design control — primary reference U.S. Government activity |
| 120978L6-15 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-054-8389 is a Bolt,shear, manufactured by Acufast Aircraft Products, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-054-8389 has 8 manufacturer part numbers on file: C7521L6-15 (Acufast Aircraft Products), C7521L6-15 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), PBF7521L6-15 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), C7521L6-15 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 120978L6-15 (Sps Technologies, Llc Dba PB Fasteners) and 3 more.
Key specifications for C7521L6-15: Head Height: 0.210 INCHES NOMINAL IN; Fastener Length: 1.498 INCHES MINIMUM AND 1.518 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.570 INCHES NOMINAL IN. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.